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1. Squeezed from both ends: Decline in Antarctic fur seals in the South Shetland Islands driven by both Top–down and Bottom–up processes

   production estimates from 2002-2012 for Cape Shirreff, Livingston Island.  Age-specific natality rates ... by poor recruitment and an aging population.  However, age-specific natality rate has also declined ... production estimates from 2002-2012 for Cape Shirreff, Livingston Island.  Age-specific natality rates ... driven by poor recruitment and an aging population.  However, age-specific natality rate has also ...

   Meeting Document : WG-EMM-14/39 : Author(s): M.E. Goebel and C.S. Reiss (USA)

2. Results of the third CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2014 and development of the time series

   different. Age frequency data from the surveys have shown the progression of a cohort from age 7 in 2012 ... to age 9 in 2014. These results suggest that the surveys are indexing local abundance and will provide ... in the survey area and the age data do not show modal class progression suggesting they are not useful ... a slight decline across the three surveys but this decline was not significantly different. Age frequency ...

   Meeting Document : WG-FSA-14/51 : Author(s): S. Mormede, S.J. Parker, S.M. Hanchet, A. Dunn (New Zealand) and S. Gregory (United Kingdom)

3. An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL

   of the coefficient of variation (CV) for length given age, (ii) use of non-informative priors for year class strength ... of variation (CV) for length given age, (ii) use of non-informative priors for year class strength parameters ... seasons for the main trawl ground, (iv) separate selectivity parameters for the late (within-year) season ... compared to the combined early (within-year) seasons for the main trawl ground, and (v) the use ...

   Meeting Document : WG-FSA-07/53 Rev. 1 : Author(s): S.G. Candy and A.J. Constable (Australia)

4. An updated assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity and extension taking commercial catch-at-length data into account

   Abstract:  The CPUE-based Age-Structured Production Model (ASPM) assessment of this resource ... The CPUE-based Age-Structured Production Model (ASPM) assessment of this resource by Brandão et al ... available over the past year. This leads to an improved picture of resource status compared to a year ... the past year. This leads to an improved picture of resource status compared to a year previously ...

   Meeting Document : WG-FSA-02/76 : Author(s): A. Brandão, D.S. Butterworth, B.P. Watkins and L. Staverees (South Africa)

5. A generalised model for evaluating yield and the long term status of fish stocks under conditions of uncertainty

   the rate of change or magnitude of parameters, such as growth, mortality, age dependent selectivity ... or magnitude of parameters, such as growth, mortality, age dependent selectivity and seasonal patterns ... each year by integrating a set of differential equations which incorporate functions that specify ... and seasonal patterns in fishing mortality, at specified time intervals during the year. This general approach ...

   Meeting Document : WG-FSA-95/41 : Author(s): de la Mare, W.K., Constable, A.J.

6. Influence of tag numbers, size of tagged fish, duration of the tagging program, and auxiliary data on bias and precision of an integrated stock assessment

   recaptures and maximise the likelihood of a robust assessment. (2) Using catch-at-age data instead of catch ... and maximise the likelihood of a robust assessment. (2) Using catch-at-age data instead of catch-at-length data ... and maximise the likelihood of a robust assessment. (2) Using catch-at-age data instead of catch-at-length data ... annual recruitment and year class strengths. (3) For a simulated lightly fished stock, CASAL assessments ...

   Meeting Document : WG-SAM-12/24 : Author(s): P.E. Ziegler (Australia)

7. Update of the Antarctic toothfish stock assessment for the Ross Sea by means of the TSVPA separable cohort model

   of the TISVPA model (2006 data on catch-at-age and cpue and the data on tag recaptures were included). All ... model (2006 data on catch-at-age and cpue and the data on tag recaptures were included). All the three ... to the Constable & de la Mare (1996) decision rules, annual catches of 23 000 tonnes per year are suitable ... & de la Mare (1996) decision rules, annual catches of 23 000 tonnes per year are suitable. ...

   Meeting Document : WG-SAM-07/9 : Author(s): D. Vasilyev, K. Shust, V. Babayan and T. Bulgakova (Russia)

8. Preliminary investigations of an assessment model for skates and rays in the Ross Sea

   uncertainty over the biological parameters including age and growth, natural mortality, steepness, and size ... and age at maturity. The applicability of a general model, such as presented here, to a multi-species ... and sexed, validating estimates of age and growth, revising the skate tagging protocols, and undertaking ... parameters including age and growth, natural mortality, steepness, and size and age at maturity ...

   Meeting Document : WG-SAM-07/4 : Author(s): A. Dunn, S.M. Hanchet, S.L. Ballara and M.P. Francis (New Zealand)

9. Preliminary results of the three season research surveys of the Spanish FV Tronio in Division 58.4.1

   of otoliths for ageing Antarctic toothfish. These data will be added to the input data in the near future ... of otoliths for ageing Antarctic toothfish. These data will be added to the input data in the near future ... year of the multi-year research survey in the Division 58.4.1, as far as the ice condition allowed ... Following the Spanish research plan approved by the SC-CCAMLR XXXII, during the third year ...

   Meeting Document : WG-SAM-16/40 Rev. 1 : Author(s): R. Sarralde, L.J. López-Abellán and S. Barreiro

10. An integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery (Division 58.5.2)

    ageing data from the 2012, 2013 and 2014 random stratified trawl surveys (RSTS) and commercial ageing ... , (d) an updated ageing error matrix, (e) an updated growth model, and (f) a prior for the survey catchability ... -2014, and incorporates (a) new fishery observations up to 2014 including new ageing data from the 2012 ... , 2013 and 2014 random stratified trawl surveys (RSTS) and commercial ageing data from 2013 ...

    Meeting Document : WG-FSA-14/34 : Author(s): P. Ziegler, D. Welsford, W. de la Mare and P. Burch (Australia)

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